feat: release 2.7.0-rc3

lib/scaffold.ts

@@ -11,6 +11,7 @@ import { basename, dirname, isAbsolute, join, resolve, sep } from "node:path";
 import { randomUUID } from "node:crypto";
 import { YAML } from "bun";
 import type { Service } from "../schema/docker.d";
+import { validateBuildpackUri } from "../shared/build-protocol";
 import { readCompose, resolveComposeFile } from "./yaml";
 import {
   renderDockerfileTemplate,
@@ -44,7 +45,7 @@ const serviceNamePattern = /^[a-z][a-z0-9-]*$/;
 
 export type Source =
   | { kind: "image"; image: string }
-  | { kind: "auto" }
+  | { kind: "auto"; uri?: string }
   | { kind: "template"; template: DockerfileTemplateId };
 export type AppOptions = {
   name: string;
@@ -131,12 +132,19 @@ export function serviceForApp(app: AppOptions): Service {
     if (!app.source.image.trim()) throw new Error("Image must not be empty");
     service.image = app.source.image.trim();
   } else {
+    if (app.source.kind === "auto" && app.source.uri?.trim())
+      validateBuildpackUri(app.source.uri.trim());
     if (
       app.source.kind === "template" &&
       !templateIds.includes(app.source.template)
     )
       throw new Error(`Unknown Dockerfile template: ${app.source.template}`);
-    service.build = app.source.kind === "auto" ? "auto" : path;
+    service.build =
+      app.source.kind === "auto"
+        ? app.source.uri?.trim()
+          ? `auto:${app.source.uri.trim()}`
+          : "auto"
+        : path;
     if (app.source.kind === "auto" && path !== ".")
       service["x-kuber-build-context"] = path;
   }
@@ -221,13 +229,13 @@ export async function addAppToCompose(
     throw new Error("Compose file cannot be found. Run kuber init first.");
   await checkedAppPath(root, app.path);
   const service = serviceForApp(app);
-  const compose = await readCompose(path);
-  if (Object.hasOwn(compose.services ?? {}, app.name))
-    throw new Error(`Service ${app.name} already exists`);
   const generated: string[] = [];
   const lock = await open(`${path}.kuber.lock`, "wx");
   try {
     const original = await readFile(path, "utf8");
+    const compose = await readCompose(path);
+    if (Object.hasOwn(compose.services ?? {}, app.name))
+      throw new Error(`Service ${app.name} already exists`);
     const source = app.source;
     if (source.kind === "template") {
       const templates = renderDockerfileTemplate(source.template);